Time-controlled dead-locking device



R. C. LEWIS. TIME CONTROLLED DEAD LOCKING DEVICE.

APPLICATION FILED IULY 29,1919.

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[96 .ZyVVE/VTOR R. C. LEWIS. TIME CONTROLLED DEAD LOCKING DEVICE. APPLICAIION 'r'lLEIJ JULY 29,1919.

1,337,083. Patented Apr. 13, 1920.

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. Eh E2- UNITED STATES PATENT orrron.

ROLLIN' C.

LEWIS, OF STAMFORD, CONNECTICUT, ASSIGNOR TO THE YALE & TOWNE MANUFACTURING COMPANY, OF STAMFORD, CONNECTICUT.

TIME-CONTROLLED DEAD-LOCKING DEVICE.

Specification of Letters Patent.

Patented Apr. 13, 1920.

Application filed July 29, 1919. Serial No. 314,100.

To all whom. it may concern:

Be it known that I, RoLLIN C. Lnwrs, a citizen of the United States anda resident of Stamford, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Time-Controlled Dead-Locking Devices; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improvement in time controlled dead lock, designed more particularly for use on store doors, the object being to provide a lock so constructed and arranged in connection with, time mechanism, that the door may be locked for a predetermined time against allvkeys of the lock except a key, herein referred to as a master key, in connection with a second key herein referred to as a clerks key, and at the expiration of such time be transformed by the automatic time mechanism into a lock operable by the clerks key alone.

A further object is to provide a lock of the character above referred to with a bolt adapted to be projected at-either side of the lock case so that the lock may be used at either side of the door.

With these and other objects in view my invention consists broadly in a bolt, a dead locking devicecontrolled by time. mechanism, key mechanism forshifting'the bolt and key mechanism for disengaging the dead locking device whereby the bolt will be free to be actuated by the bolt shifting mechanism.

My invention further consists in the parts and combination of parts and in .details of construction as wlll be more fully explained and pointed out in the claims.

In the accompanying drawings; Figure 1 is a view in rear elevation of the lock, the cover plate of the casing being removed and shown at the side; Fig. 2 is a similar view with the time mechanism removed; Fig. 3

is a View in transverse vertical section; Fig.

4: is a detached view of the driving wheel-of the time mechanism and the lever actuated thereby for withdrawing the bolt dead-locking means, and Fig. 5 is a view in vertical section through the bolt and locking and a deadlocking means for the latter.

\ 10 represents a lock casing adapted to be secured to the inner face of the door, and 11 secured to the latter by nuts 12 screwed onto the posts 13 which are secured to the casing and pass through holes in the cover plate. The cover plate is provided with a glass covered peep opening 14:, through which the dial numerals of the time mechanism may be seen from the rear, and with an opening 15 for the key for winding up the time mechanlsm.

The details of the time mechanism form no. part of my invention, hence only such features thereof as cooperate with my lock are shown and herein referred to.

The bolt 16 is mounted in openings in the opposite sides of the lock casing so that either end thereof may be the locking end lof the bolt, thus adapting it for right and shifting the bolt longitudinally from its locked to its unlocked position.

Mounted in the housing 20* at the upper part of the casing 10, and above the bolt 16, are the spring pressed dogs 20 and 21, one of which enters the slot 18 for locking the bolt when the latter is projected at one side of the casing 10, and the other cooperates with said slot for locking the bolt in its unlocked position.

When the bolt is projected at the left, as in full lines in Fig. 1, the dog 20 enters slot 18 for locking the bolt in its projected position, and is lifted and removed from the said slot by its contact with the end of cam 17, which as before explained is actuated by the clerks key. When the bolt is retracted the dog 21 falls into the slot 18 and holds the bolt against movement until actuated by the clerks key. When the locking end of the bolt is at the opposite side of the casing, as shown in dotted lines in Fig. 1, the dog 21 enters the slot 18 and retains the bolt in its locked position, while the dog 20 locks it when retracted.

It will thus be seen'that the dogs 20 and 21 operate respectively to dog the bolt in its. projected and retracted position, hence sents the locking'position ofthe bolt, the

latter will be dogged in its projected pos i-' tion by the dog 20, and be dogged in its retracted position by the dog 21, and when the dotted line positiomFig. 1, represents the locking position of the bolt, the latter will be tract or project the boltJ v H The bolt is also provided on its upper surface withtwo recesses12223, the recess 23 being adapted to receive the lower end ofthe time mechanism actuated plunger 24. when ith e bolt' is used at'one side'of the lock for *de'adlocking the bolt,"and the other recess "is adapted to receive the plunger '2l'when the locking position of the bolt is at the opposite side of the casing, the recess not in use when the lock is applied to a door being closed by a screw plug 25', the upper surface of which is flush with the top surface of the bolt so as to permit the plunger 24 to fride freely thereon. The slot'18 is located adjacent the rear face of the bolt, and in rear of the plane of the recesses 22 and 23 "so thatthe path of movement of the said 35" recesses is notin the plane of'the plunger 21.

In applying the lock to a door, if the full f line position, Fig.1 of the bolt, be its looking position, recess'22will be closed by the plug 25, whereas if the dotted line position, be its "locking position, the screw plug would be applied in recess 23 and recess 22 be left open.

The plunger 24 is normally held in contact with'the bolt by a spring, audit is prov'ide'din its rear face with an opening for the pin- 26 on" the rod 27,the plunger housiiig'li'avin g'g' an elongated slot 27 for the passage and movement of the pin 26. This rod is bent to clearthe time mechanismof the loek'and is connected at its lower end by pin 28, to'the lever 29 pivoted to the plate 30 of the 'time'mecha'nism of the look. This lever is pivoted intermediate its iends'and its free end projects upwardly and terminates in afflat surface 31 which is'in the path of movement of pin 32ion the driving wheel-33 of the timem'echanism, so that during the "p a'r't "revolution of" this wheel, t'he'pi'n'32 will 'contactwith the'end of lever "red 27 and the the'said rod; I

29 and turn the" latter in a direction to lift plunger 24. connected with The lock-34 is" alsofof the 'pin tumbler type, and is designed to beactu'ated by the master key. It is provided with a cam 35,

hen the full line position, Fig. 1, repre-.

dogged in its projected position by the dog 21am in'its retracted position by the 'dog;20,"thedogs riding onthe top of the "bolt'when the latter is at an intermediate i position. These dogs project into the slot '18 in the bolt'sufliciently to be engaged and 1 'liftedby the cam 17 in its movements to ref-It is evident that many "slight might be resorted "to in the relative arr-angefmentof parts shown and d'eseribed without departing from the spirit and scope ofmy Which when turned, is adapted to engage pin 28 on rod 27 and move the latter upwardly thusraising the'plunger 'The driving wheel'33' of" the time mechanism carries dial numbered to represent hours, and a pointer 36 is located over the dial and visible through the peep hole in the casing. This dial may be""set"by the of any number ofho urs or fractionsthereof within its limit, and until such time has elapsed the 'lock will be positively deadlocked. against all keys but the master key,

so that it'will be impossible for one-having a clerks key to unlock the door while the latter is deadlo'ckedby the time mechanism, but the 'deadlocking plunger may bewithdrawn fromthe belt at any time-by the in sertion and turning of a master key in its lock andholding the dea dlocking plunger elevated by'the master key while the bolt is retracted by a clerks key in the usual manner.

In applying the lock to a door, the screw plug25 should be inserted inits proper recess the other recess being left open to receive the "deadlocking plunger, and if it should bedesired to thereafter'use the other end ofthe bolt as theloeking end, the plug can be removed and secured in the other "With a look so constructed the time lock 1 would be set, say Saturday afternoon torelease the dead loek'at eight oclock Monday morning' When that hour is reached the time mechanism of the lockwilllift' the deadlocking plunger thus disengaging the latter from the bolt and holding it out of engagement until the time mechanism has been reset. After the plunger has been withdrawn by the time mechanism, the bolt may be retracted by the clerks key and'the door opened. If-however,'it should be necessary to open'the doorprior-to the time the f automaticmechanism has been set to withdraw'the-deadlo cking plunger, it may be "done by a master key anda clerks key-as explained, the master key operating to with- "rlr'aw' the deadlocking plunger and the clerks' key retracting the bolt-l changes invention. Hence =I=-would-'=have it understood thatI do not wish to confine myself to the exact construction and arrangement of parts shown and described, but

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is

1. In a lock, the combination of a bolt, key mechanism for actuating same, time controlled mechanism for deadlocking the bolt against said key mechanism, and a master key mechanism for disengaging the time controlled deadlock from the bolt whereby the latter may t ien be actuated by its key mechanism.

2. In a lock, the combination of a bolt, time controlled means for deadlocking the bolt, key mechanism for actuating the bolt when the latter is not deadlocked and independent key mechanism for withdrawin the deadlocking means prior to the time set for the release of the bolt by the time mecha nism thus permitting the bolt to be retracted by its key mechanism.

3. In a lock, the combination of a bolt, dogging means, and deadlocking means for the bolt, key mechanism for actuating the dogging means, time mechanism for disengaging the deadlocking means, and key mechanism independent of the time mechanism for disengaging the deadlocking means thus leaving the bolt free to be retracted by its key mechanism.

4. In a lock, the combination of a bolt, dogging means for the same, key mechanism for actuating the dogging means and bolt, a deadlocking plunger, time mechanism for disengaging the deadlocking plunger from the bolt, and second key mechanism for disengaging the deadlocking plunger prior to the time set for the operation of the time mechanism.

5. In a lock, the combination of a casing, a bolt adapted to be projected at either side of the latter whereby the lock may be used on a right or left hand door, two dogs one of which dogs the bolt when projected and the other when retracted. and means for deadlocking the bolt in each of its positions.

6. In a lock, the combination of a casing, a bolt adapted. to be projected at either side of the latter whereby the lock may be used at either side of a door and two dogs one of which dogs the bolt in looking position and the other dogs the bolt when retracted, and which operate reversely when the locking position of the bolt is reversed.

7. In a lock, the combination of a lock casing, a bolt adapted to be projected at either side of the casing and provided with ing the bolt, key mechanism for actuating the bolt when the latter is not deadlocked, and time mechanism for withdrawing said plunger at a predetermined time.

9. In a lock, the combination of a lock casing, a bolt adapted to be projected at either side thereof and provided with two recessed seats, a removable plug closing one of said seats, a deadlocking plunger adapted to enter the open seat for deadlocking the bolt, key mechanism for actuating the bolt when the latter is not deadlocked, and a second key mechanism for disengaging the plunger from the bolt so as to permit the bolt to be actuated by the first mentioned key mechanism.

10. In a lock, the combination of a lock casing, a bolt adapted to be projected at either side thereof and provided with two recessed seats either of which may be closed by a removable plug, a deadlocking plunger adapted to enter the open seat for deadlocking the bolt, key mechanism for actuating the bolt when the latter is not deadlocked, time mechanism connected with the plunger for withdrawing it from its seat in the bolt at a predetermined time and a second key mechanism for withdrawing the said plun ger from the bolt prior to the operation of the time mechanism.

11. In a lock, the combination of a bolt, a deadlocking device for same. time controlled mechanism for disengaging the dead locking device from the bolt. kev mechanism for actuating the time controlled mecha nism whereby the bolt may be released from the deadlock prior to the time set for its release by the time mechanism and independent means for retracting the bolt after the withdrawal of the deadlocking device.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

ROLLIN 'o. LEWIS.

Witnesses:

I SYLvANUs M. ARCHER,

WM. P. MOSELY. 

